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Issue #50: Fix of fonts, be more patient when PDF has error items

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This commit is contained in:
Jakub Melka
2023-04-30 17:52:01 +02:00
parent 0b47464241
commit 349efcbf88
3 changed files with 23 additions and 94 deletions
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14
Pdf4QtLib/sources/pdfpagecontentprocessor.cpp
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@ -2691,7 +2691,14 @@ void PDFPageContentProcessor::operatorTextSetWordSpacing(PDFReal wordSpacing)
void PDFPageContentProcessor::operatorTextSetHorizontalScale(PDFReal horizontalScaling)
{
// We disable horizontal scaling to less than 1%
horizontalScaling = qMax(horizontalScaling, 1.0);
if (horizontalScaling >= 0.0 && horizontalScaling < 1.0)
{
horizontalScaling = 1.0;
}
if (horizontalScaling < 0.0 && horizontalScaling > -1.0)
{
horizontalScaling = -1.0;
}
m_graphicState.setTextHorizontalScaling(horizontalScaling);
updateGraphicState();
@ -3176,7 +3183,8 @@ void PDFPageContentProcessor::drawText(const TextSequence& textSequence)
const bool isHorizontalWritingSystem = font->isHorizontalWritingSystem();
// Calculate text rendering matrix
QTransform adjustMatrix(horizontalScaling, 0.0, 0.0, 1.0, 0.0, textRise);
const PDFReal fontFactor = (fontSize < 0.0) ? -1.0 : 1.0;
QTransform adjustMatrix(horizontalScaling * fontFactor, 0.0, 0.0, fontFactor, 0.0, textRise);
QTransform textMatrix = m_graphicState.getTextMatrix();
if (!isType3Font)
@ -3201,7 +3209,7 @@ void PDFPageContentProcessor::drawText(const TextSequence& textSequence)
{
advance.ry() += additionalAdvance;
}
advance.rx() *= horizontalScaling;
advance.rx() *= horizontalScaling * fontFactor;
// Then get the glyph path and paint it
if (item.glyph)